The human body is made up of more bacteria cells than human cells. Now, researchers at Harvard have isolated the genes responsible for producing amino acids that can block ultraviolet light and managed get E. coli bacteria to produce them too. Can I interest you in some sunblocking bacteria living on your skin?
More research into into the effects of ketamine on depression published today in the journal Science [abstract]. [more inside]
In the year 2182 -- 172 years time -- there's a 1 in 1000 chance that we might be hit by a very large asteroid. With two centuries advance notice, will we be able to develop effective asteroid deflection techniques? [more inside]
The Pentagon is currently surveying the troops to gauge their opinion towards gays and the repeal of Don't-Ask-Don't-Tell. It has recently come to light that previous surveys were done about the fighting man's opinion of 'blacks' and 'jews'. [more inside]
New Adventures in Recent Evolution - In the last few years, biologists peering into the human genome have found evidence of recent natural selection. cf. Social Darwinism: 21st century edition [previously] (via ip) [more inside]
we alone have the power to conjure up at will erotic, orgasm-inducing scenes in our theater-like heads
One reason why humans are special and unique: We masturbate. A lot
The Carnegie Institution for Science reports "a much higher water content in the Moon’s interior than previous studies." For decades, the moon's water content was estimated at less than 1 part per billion; the new estimates range from 64 ppb to 5 parts per million. A scientist at Washington University said, "We can now finally begin to consider the implications—and the origin—of water in the interior of the Moon.” There's more at NASA and the BBC, and the full paper is available at PNAS (PDF).
"Does Professor Quality Matter? Evidence from Random Assignment of Students to Professors" by Scott Carrell and James West is the title of an interesting new study in this month's Journal of Political Economy, a leading journal in economics. (For a summary of the paper, see this review. An ungated version, too). The authors are interested in determining the role of "professor quality" in student learning. They do this by exploiting an unusual institutional feature of the Air Force Academy whereby all undergraduates are randomly assigned their professors, and all professors use the same syllabus. The authors also have the professor's student evaluations, as well each student's subsequent performance in the follow-up classes. To keep it simple, they focus only on Calculus I and the follow-up courses in Calculus (which are mandatory), though they note that an earlier study that looked at Chemistry and Physics found similar things. [more inside]
Mendeley is a cross-platform research management tool which features article databasing, PDF annotation, online backup, private, shared and public collections, metadata lookup on Google Scholar, direct exporting of multiple citation styles to Word, OpenOffice and BibTex, the ability to add documents directly from a web browser, and social networking with other members in your field of study. Like Zotero (previously), but out of the browser and with note-taking abilities. For Windows, Mac and Linux.
London Lives 12 London archives – digitised, marked up and tagged – to "create a comprehensive electronic edition of primary sources on criminal justice and the provision of poor relief and medical care in eighteenth-century London". The Lives page is a good place to start browsing. [related]
A nearly 25-year study has concluded that children raised in lesbian households were psychologically well-adjusted and had fewer behavioral problems than their peers. Results were published this month in Pediatrics: the Journal of the American Academy of Pediatrics. (Abstract. Free PDF. Scribd). [more inside]
Science vs. Religion: a new book, Science and Religion: What Scientists Really Think by Rice University sociologist Elaine Ecklund, discusses the results of her detailed study of 1,646 scientists at top American research universities. Among her findings: ~36% of those surveyed not only believe in God but also practice a form of closeted, often non-traditional faith. They worry about how their peers would react to learning about their religious views. Interview with the author from the Center for Inquiry's Point of Inquiry podcast. Also, here's a webcast from an author discussion forum held at Rice University on April 7th. [more inside]
What do Singing in the Rain, Live Is Life, Don't Worry, Be Happy, I Will Survive and Ça fait rire les oiseaux have in common? In a study, French-speaking Internet users identified these five pop songs out of 100, as the most pernicious earworms. Here are their top 25 picks from BRAMS, including audio clips. [more inside]
Intellectual Ventures is an invention factory founded by Nathan Myhrvold, who previously founded Microsoft Research and was MS's CTO. Bill Gates raves about IV, Malcolm Gladwell wrote an article about the IV invention process in The New Yorker, Newsweek profiled Nathan’s company in April 2010, and this week there was an hour-long TV interview with Myhrvold on Charlie Rose. Take a 6-min video tour of the laboratory.
Best of History Web Sites (from EdTechTeacher,) is a resource of annotated and rated-by-content links to over 1200 history web sites across a broad range of related topics. The site also offers links of special interest to educators: hundreds of K-12 lesson plans, teacher guides, activities, games and quizzes and more.
Is a Woman's MBA Worth Less? $4,600. That's how much less women made than men in their first post-MBA jobs, according to research by Nancy Carter and Christine Silva of Catalyst. And it's not because women tend to start at lower positions than men — though they do start at lower positions than men, on average, that's a separate problem. The research controls for job level and industry. What's more, the salary lines aren't parallel; men's salaries start higher, then rise faster. The gap widens over time, even after controlling for factors like having children or differing aspiration levels. The pay just isn't equal.
Odds of Cooking the Grandkids: "There is a horrible paper in this week's Proceedings of the National Academy of Sciences, which looks at how the limits of human physiology interact with upper-range global warming scenarios. The bottom line conclusion is that there is a small - of order 5% - risk of global warming creating a situation in which a large fraction of the planet was uninhabitable (in the sense that if you were outside for an extended period during the hottest days of the year, even in the shade with wet clothing, you would die)." [more inside]
pay for research once... you are a taxpayer... pay for research twice... well, we shouldn't pay for research twice
Yesterday (April 15), Representatives Doyle (D-PA), Waxman (D-CA), Wasserman-Schultz (D-FL), Harper (R-MS), Boucher (D-VA) and Rohrabacher (R-CA) introduced the Federal Research Public Access Act (HR 5037), a bill that would ensure free, timely, online access to the published results of research funded by eleven U.S. federal agencies. -Alliance for Taxpayer Access. [more inside]
Nothing succeeds like failure. [H]istory shows that breakthroughs often spring not from carefully laid plans, but from mischance or even sheer, ridiculous accidents. A stovetop spill heralded vulcanized rubber; the potency of uranium was revealed when a rock was left in a drawer among photographic plates. And great research seldom follows an unswerving path. At RCA in Princeton in the 1950s, David Sarnoff exhorted his team to invent a flat television that could hang on a wall. “There were an enormous number of failures,” says Princeton historian of science Michael Gordin — and instead of TVs, the world got the Seiko digital watch in 1973.
"She needed company, sympathy — someone, anyone, to see and feel her loss — and searched the face of her assigned social worker in vain." [more inside]
Veronique de Rugy, NRO contributor and George Mason fellow, says her research indicates that stimulus funding was disproportionately directed towards Democratic congressional districts. Nate Silver begs to disagree. De Rugy responds here; Silver responds here. Others say that this is a model "for the quick, effective peer-review that the internet facilitates." Perhaps this is a new model for peer review?
Have you ever wanted to change the functionality of the GUI of a program that you didn't have the source code for? Prefab is a tool that was made to allow you to do exactly that. [more inside]
Followup to this post: A US District Court has ruled that Myriad Genetic's patents on breast cancer genes BRCA1 and BRCA2, which allow them to hold exclusive rights to a widely used genetic test for inherited breast and ovarian cancer susceptibility, are invalid. Genomics Law Report analyzes the ruling in two posts. The decision is likely to be challenged in a legal appeal — but if upheld, it could have huge implications for the biotechnology industry. [more inside]
A new study suggests that humanity's sense of fair play and kindness towards strangers is determined by culture, not genetics. Speculation: the finding may be directly related to the rise of religion in human history, as well as more complex economies. (Via). [more inside]
Sweet, sour, bitter, salty, umami, and.... fat? Dr. Russell Keast, an Austrailian scientist who studies "perceived flavour, consumer acceptance and preference of foods and nutrition," has conducted research exploring humans' apparent sixth taste perception: fat. The kicker? Sensitivity to the taste of fat was negatively correlated with fat intake and BMI. Dr. Keast discussed the results of his latest research with Slashfood, and The Sydney Morning Herald. (via) [more inside]
Reddit interviews Peter Norvig (reddit discussion) related: Seeds of AI at Google -- how the internet is shaping intelligence and learning and, in turn, the role of human culture in natural selection1,2 and why we are not living in western civilization. (via)
A letter by Rene Descartes, stolen in 1840s, recovered in 2010 by online detective work. The letter was stolen by Guglielmo Libri, inspector general of the libraries of France, who stole thousands of valuable documents and fled to England in 1848. Since 1902 it's been in the collection of Haverford College, its contents unknown to scholars, and nobody there realized that it was an unknown letter. But because they had catalogued it and recently put their catalogue on line, Dutch philosopher Erik-Jan Bos found it "during a late-night session browsing the Internet". (A Haverford undergraduate thirty years ago had translated it and written a paper on it, in which he recognized that the letter was unknown -- but nobody followed up and the letter had sat in the library since then until it was listed online.) The letter includes some last-minute edits to the Meditations, and some thoughts on God as causa sui. Haverford, whose president was a philosophy major, is returning the letter to the Institut de France.
The Google/China hacking case, or "How many news outlets do the original reporting on a big story?"
New Pew Study Finds the Millennial Generation the Most Educated, Underemployed, Optimistic, Plugged-In, Nonreligious, Democratic generation in American History
Dig out the flannel from the attic--there's another grunge movement a-comin'! According to a new study from the Pew Research Center, the millennial generation (18-29 year olds) are becoming one of the most educated generations ever, but many of them are still unemployed. This research revealed another very scary statistic. They said the college students who graduate during a bad economy typically suffer long term consequences that can affect their careers and earnings for as long as 15 years (Gen-Xers everywhere wince). [more inside]
We may soon be able to clone Neanderthals. But should we? An essay from Archaeology Magazine examines the ethical, scientific and legal ramifications. (Via Heather Pringle's Time Machine blog, where essay author Zach Zorich posted a reply and elicited a response.) [more inside]
“For me, augmented reality has to be the future for 2020, together with it's close cousin the internet of things... It will become commonplace to be able to overlay reviews of a product simply by pointing a screen at it, or check the weather forecast by pointing your phone at the sky.” The Pew Research Center releases its The Future of the Internet IV report, an online survey of 895 technology stakeholders’ and critics’ expectations of social, political and economic change by 2020. [more inside]
Armed with Science: Research and Applications for the Modern Military is a podcast put out by the US Department of Defense. Each week, they interview scientists and other personnel about R & D in the military. Topics include nutrition, portable fuel cells, virtual online worlds, substance abuse, and the effects of sounds on whale behavior. [more inside]
Pellagra is an awful disease. Its symptoms are the four D's -- diarrhea, dermatitis, dementia, and death, unpleasant by anyone's standards. Caused by a deficiency in niacin, pellagra is uncommon in developed nations thanks to the fortification of bread products with niacin. But could excess niacin be causing the rapid rise in type II diabetes? [more inside]
Norman Rockwell's research photos. Norman Rockwell commissioned photos (which he meticulously directed) and then painted those photos. Here are some of them.
"We were concerned that the study would raise a lot of controversy and be misused," Pardo said. "We were right." Some practitioners treat autistic children with the anti-inflammatory intravenous immunoglobulin, citing a study by Carlos Pardo, et al. showing inflammation in the brains of deceased autistic patients. Pardo: "modulators of immune reactions (e.g. intravenous immunoglobulins, IVIG) WOULD NOT HAVE a significant effect." Others, following the work of Simon Baron-Cohen on autism and the male brain, treat autistic children with testosterone inhibitors, a prospect which Baron-Cohen says "fills me with horror." Another anti-inflammatory treatment, hyperbaric therapy, is supported by one recent clinical trial, but looks bad in another. Side effects include horrible death by fire. (via the Chicago Tribune)
"Using a cell phone while walking is so distracting that people are likely to miss a clown riding a unicycle."
October's focus on breast cancer is a curvy pink double-edged sword and those in the fight agree. [more inside]
"How is straight female interest in slash fiction like straight male interest in "shemale" models? And why in the world does this matter?"
The curious case of the game show neuroscientists, or how NOT to research an online community. Two researchers wade into fanfic community without due consideration, create shitstorm. More here.
Neuroscientist Lise Eliot finds that claims of sex differences fall apart. In one study, scientists dressed newborns in gender-neutral clothes and misled adults about their sex. The adults described the "boys" (actually girls) as angry or distressed more often than did adults who thought they were observing girls, and described the "girls" (actually boys) as happy and socially engaged more than adults who knew the babies were boys. Dozens of such disguised-gender experiments have shown that adults perceive baby boys and girls differently, seeing identical behavior through a gender-tinted lens. [more inside]
What you don't know about your friends: The problem, [Francis Flynn, a psychology professor at Stanford] says, is that interacting with people and sharing experiences with them doesn’t necessarily translate into knowing lots of things about them. The main hurdle is the way we talk to those we’re close to: our conversations are usually meant not so much to gather information as to establish rapport and to bond - in short, to make friends.
Spacehack "A directory of ways to participate in space exploration. Interact and connect with the space community."
Americans like science. But they think much less highly of American scientists than American scientists themselves do. Most scientists also rate media coverage of science as only fair or poor. Yet public knowledge of some scientific facts is .... not that bad (Section 7). A Pew Research Report reveals all.